Question

Five Iranian weightlifters going to the olympics in Sydney have an average weight of 180 pounds. If the heaviest is 260 lbs, and none of the others is more than 185 each, what is the minimum weight of the fifth wrestler?

Answer 1

(260+3(185)+w)/5=180 multiply both sides by 5

260+555+w=900 combine like terms on left side

815+w=900 subtract 815 from both sides

w=85 lbs

That is one light weightlifter :)

check...

(260+3(185)+85)/5=180

(260+555+85)/5=180

900/5=180

180=180